Made up of spongy, elastic tissue that stretches as you breathe

Clusters of tiny air sacs that allow the exchange of oxygen and carbon dioxide

Small commpartment that divides the lungs into sections

When alveoli in the lungs enlarge and cant push oxygen to the blood

Smaller tubes within the lungs

Bronchial tubes contract quickly causing shortness of breath, coughing, and wheezing

Illness of the lungs where the alveoli become inflamed and filled with fluid

Part of the throat that contains the tonsils

Alveoli increase the surface area in the lungs to allow...

Membrane layer which covers the lungs

Passage way that moistens the air and has hairs to trap dust and particles

When bronchial tubes are irritated and swell (causing excessive coughing)

Lung volume might vary because of

Two short tubes that carry air into the lungs

Caused by inhaling tar in cigarrette smoke

This is a tube about 12cm long with c-shaped rings of cartilage to keep it open

What is the function of the respiratory system

This is the airway that has two pairs of vocal chords attached to it

Muscular structure that helps to expand and contract the lungs, forcing air in and out

This is a tube-like pasage used for food, liquid, and air